1979 50/500 merc. carb

seminol7

Seaman
Joined
Nov 16, 2009
Messages
69
MY fifty merc. will crank on choke and run for 1 or 2 minutes at 1/4 throttle then dies will not idle.I was wondering if it could be fuel pump or something else.set air jets at 1 1/2,and cleaned carbs needle and seat looked good.just running out of fuel.thanks for any help.
 

Barnacle_Bill

Admiral
Joined
Feb 8, 2004
Messages
6,469
Re: 1979 50/500 merc. carb

When it starts to die try pumping the primer bulb. If it acts like it wants to run rebuild the fuel pump.
 

seminol7

Seaman
Joined
Nov 16, 2009
Messages
69
Re: 1979 50/500 merc. carb

thanks for the reply, tried and still dies on idle but seems to pick up on 1/4 plus throttle, could low speed jet be clogged or still not be getting gas because fuel pump diafram?thanks!
 

seminol7

Seaman
Joined
Nov 16, 2009
Messages
69
Re: 1979 50/500 merc. carb

soaked them once but will try again and post back.Thanks alot
 
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